Description Native herbaceous perennial. Spreads by rhizome; may form large colonies.Habit: strong and upright; solitary hairy stem.Height: 1-5 ft (30-150 cm).Leaf: alternate, gray-green, hairy; near the base, narrow, pointed, serrated, 6 in (15 cm) long; upper leaves smaller, entire, oval. Flower: many small shaggy yellow to gold flowerheads, to 1 in (25 mm) wide, with stubby sparse rays and a shaggy center; held in a long dense cluster at the end of the stem.